Houston Texans playoff picture

So from my understanding, the Texans are currently going to the play offs, BUT, if they loose against the Bucs and then loose against the titans whilst the titans won their last two that means the Texans won’t go? I’ll be pretty pissed because I’ll be going to the week 16 game against the Titans. Also how is NRG stadium

P.S F**k the Colts